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-rw-r--r--drivers/rpmsg/rpmsg_internal.h13
-rw-r--r--drivers/rpmsg/rpmsg_ns.c14
-rw-r--r--include/linux/rpmsg.h6
3 files changed, 27 insertions, 6 deletions
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h
index d4b23fd019a8..3e81642238d2 100644
--- a/drivers/rpmsg/rpmsg_internal.h
+++ b/drivers/rpmsg/rpmsg_internal.h
@@ -94,10 +94,19 @@ int rpmsg_release_channel(struct rpmsg_device *rpdev,
*/
static inline int rpmsg_ctrldev_register_device(struct rpmsg_device *rpdev)
{
+ int ret;
+
strcpy(rpdev->id.name, "rpmsg_ctrl");
- rpdev->driver_override = "rpmsg_ctrl";
+ ret = driver_set_override(&rpdev->dev, &rpdev->driver_override,
+ rpdev->id.name, strlen(rpdev->id.name));
+ if (ret)
+ return ret;
+
+ ret = rpmsg_register_device(rpdev);
+ if (ret)
+ kfree(rpdev->driver_override);
- return rpmsg_register_device(rpdev);
+ return ret;
}
#endif
diff --git a/drivers/rpmsg/rpmsg_ns.c b/drivers/rpmsg/rpmsg_ns.c
index 762ff1ae279f..8eb8f328237e 100644
--- a/drivers/rpmsg/rpmsg_ns.c
+++ b/drivers/rpmsg/rpmsg_ns.c
@@ -20,12 +20,22 @@
*/
int rpmsg_ns_register_device(struct rpmsg_device *rpdev)
{
+ int ret;
+
strcpy(rpdev->id.name, "rpmsg_ns");
- rpdev->driver_override = "rpmsg_ns";
+ ret = driver_set_override(&rpdev->dev, &rpdev->driver_override,
+ rpdev->id.name, strlen(rpdev->id.name));
+ if (ret)
+ return ret;
+
rpdev->src = RPMSG_NS_ADDR;
rpdev->dst = RPMSG_NS_ADDR;
- return rpmsg_register_device(rpdev);
+ ret = rpmsg_register_device(rpdev);
+ if (ret)
+ kfree(rpdev->driver_override);
+
+ return ret;
}
EXPORT_SYMBOL(rpmsg_ns_register_device);
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index 02fa9116cd60..20c8cd1cde21 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -41,7 +41,9 @@ struct rpmsg_channel_info {
* rpmsg_device - device that belong to the rpmsg bus
* @dev: the device struct
* @id: device id (used to match between rpmsg drivers and devices)
- * @driver_override: driver name to force a match
+ * @driver_override: driver name to force a match; do not set directly,
+ * because core frees it; use driver_set_override() to
+ * set or clear it.
* @src: local address
* @dst: destination address
* @ept: the rpmsg endpoint of this channel
@@ -51,7 +53,7 @@ struct rpmsg_channel_info {
struct rpmsg_device {
struct device dev;
struct rpmsg_device_id id;
- char *driver_override;
+ const char *driver_override;
u32 src;
u32 dst;
struct rpmsg_endpoint *ept;